MSBuild/GIT/SVN auto-increment build number

global.targets

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" 
	DefaultTargets="Settings">

	<PropertyGroup>
		<productVersion>0.1.1</productVersion>
	</PropertyGroup>

	<UsingTask
		TaskName="ExtractRevisionHash"
		TaskFactory="CodeTaskFactory"
		AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" >
    	
		<ParameterGroup>
			<WorkCopy ParameterType="System.String" Required="true" />
			<RevisionHash ParameterType="System.String" Output="true" />
		</ParameterGroup>

    	<Task>
      		<Using Namespace="System" />
      		<Using Namespace="System.Diagnostics" />
      		<Using Namespace="System.IO" />
      		<Code Type="Fragment" Language="cs">
				<![CDATA[
	            try {
    	            ProcessStartInfo psi = new ProcessStartInfo("git", "rev-parse HEAD");
        	        psi.WorkingDirectory = WorkCopy;
            	    psi.RedirectStandardOutput = true;
                	psi.RedirectStandardError = true;
	                psi.UseShellExecute = false;
    	            Process p = Process.Start(psi);
        	        string line;
            	    while ((line = p.StandardOutput.ReadLine()) != null) {
    	                RevisionHash = line;
        	            Log.LogMessage("Last Git Revision Hash: {0}", RevisionHash);
                	}
	                p.WaitForExit();
    	            if (p.ExitCode != 0)
        	            Log.LogError(p.StandardError.ReadLine());
            	    return p.ExitCode == 0;
	            } catch (Exception ex) {
    	            Log.LogError(ex.Message);
        	        return false;
            	}
				]]>
      		</Code>
    	</Task>
	</UsingTask>

	<UsingTask
		TaskName="ExtractGITRevision"
		TaskFactory="CodeTaskFactory"
		AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" >
    	
		<ParameterGroup>
			<WorkCopy ParameterType="System.String" Required="true" />
			<Revision ParameterType="System.String" Output="true" />
		</ParameterGroup>

    	<Task>
      		<Using Namespace="System" />
      		<Using Namespace="System.Diagnostics" />
      		<Using Namespace="System.IO" />
      		<Code Type="Fragment" Language="cs">
				<![CDATA[
	            try {
    	            ProcessStartInfo psi = new ProcessStartInfo("git", "rev-list HEAD --count");
        	        psi.WorkingDirectory = WorkCopy;
            	    psi.RedirectStandardOutput = true;
                	psi.RedirectStandardError = true;
	                psi.UseShellExecute = false;
    	            Process p = Process.Start(psi);
        	        string line;
            	    while ((line = p.StandardOutput.ReadLine()) != null) {
    	                Revision = line;
        	            Log.LogMessage("Last Git Revision: {0}", Revision);
                	}
	                p.WaitForExit();
    	            if (p.ExitCode != 0)
        	            Log.LogError(p.StandardError.ReadLine());
            	    return p.ExitCode == 0;
	            } catch (Exception ex) {
    	            Log.LogError(ex.Message);
        	        return false;
            	}
				]]>
      		</Code>
    	</Task>
	</UsingTask>

	<UsingTask
		TaskName="ExtractSVNRevision"
		TaskFactory="CodeTaskFactory"
		AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" >
    	
		<ParameterGroup>
			<WorkCopy ParameterType="System.String" Required="true" />
			<Revision ParameterType="System.String" Output="true" />
		</ParameterGroup>

    	<Task>
      		<Using Namespace="System" />
      		<Using Namespace="System.Diagnostics" />
      		<Using Namespace="System.IO" />
      		<Code Type="Fragment" Language="cs">
				<![CDATA[
	            try {
    	            ProcessStartInfo psi = new ProcessStartInfo("svn", "info");
        	        psi.WorkingDirectory = WorkCopy;
            	    psi.RedirectStandardOutput = true;
                	psi.RedirectStandardError = true;
	                psi.UseShellExecute = false;
    	            Process p = Process.Start(psi);
        	        string line;
            	    while ((line = p.StandardOutput.ReadLine()) != null) {
                	    if (line.ToLower().StartsWith("url:"))
                    	    Log.LogMessage("Svn Url: {0}", line.Substring(5));
	                    if (line.ToLower().StartsWith("last changed rev:")) {
    	                    Revision = line.Substring(18);
        	                Log.LogMessage("Last Revision: {0}", Revision);
            	        }
                	}
	                p.WaitForExit();
    	            if (p.ExitCode != 0)
        	            Log.LogError(p.StandardError.ReadLine());
            	    return p.ExitCode == 0;
	            } catch (Exception ex) {
    	            Log.LogError(ex.Message);
        	        return false;
            	}
				]]>
      		</Code>
    	</Task>
	</UsingTask>

	<UsingTask
		TaskName="ReplaceText"
		TaskFactory="CodeTaskFactory"
		AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" >
    	
		<ParameterGroup>
			<InputFile ParameterType="System.String" Required="true" />
			<OutputFile ParameterType="System.String" Required="true" />
			<FindFor ParameterType="System.String" Required="true" />
			<ReplaceBy ParameterType="System.String" Required="true" />
			<Revision ParameterType="System.String" Output="true" />
		</ParameterGroup>

    	<Task>
      		<Using Namespace="System" />
      		<Using Namespace="System.Diagnostics" />
      		<Using Namespace="System.IO" />
      		<Using Namespace="System.Text.RegularExpressions" />
      		<Code Type="Fragment" Language="cs">
				<![CDATA[
	            try {
    	            StringBuilder sb = new StringBuilder();
        	        // in-memory replace 
            	    Regex rx = new Regex(FindFor);
                	string text = File.ReadAllText(InputFile);
	                text = rx.Replace(text, ReplaceBy);
    	            if (File.Exists(OutputFile)) {
        	            string oldText = File.ReadAllText(OutputFile);
            	        if (oldText != text)
                	        File.WriteAllText(OutputFile, text, Encoding.UTF8);
	                } else
    	                File.WriteAllText(OutputFile, text, Encoding.UTF8);
        	        return true;
	            } catch (Exception ex) {
    	            Log.LogErrorFromException(ex);
        	        return false;
            	}
				]]>
      		</Code>
    	</Task>
	</UsingTask>
	
</Project>

main.proj

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0"
	DefaultTargets="Build">

	<Import Project="global.targets" />	

	<PropertyGroup>
		<BuildRoot>$(MSBuildProjectDirectory)\build</BuildRoot>
		<Configuration>Debug</Configuration>
		<gitRevision>1</gitRevision>
		<gitRevisionHash>Unknown commit</gitRevisionHash>
	</PropertyGroup>

	<ItemGroup>
		<BuildProject Include="src\Solution.sln" />
	</ItemGroup>

	<Target Name="Build" DependsOnTargets="Version">
		<MsBuild
			Projects="@(BuildProject)"
			Targets="Build"
			Properties=""
			StopOnFirstFailure="true"
			/>
	</Target>

	<Target Name="Version">
		<!-- 
			If .git folder is found than CommonAssemblyInfo.cs.part will be regenerated with new hash value.
		 -->
		<ExtractRevisionHash WorkCopy="$(MSBuildProjectDirectory)" Condition="Exists('.git')">
			<Output TaskParameter="RevisionHash" PropertyName="gitRevisionHash"/>
		</ExtractRevisionHash>
		<ExtractGITRevision WorkCopy="$(MSBuildProjectDirectory)" Condition="Exists('.git')">
			<Output TaskParameter="Revision" PropertyName="gitRevision"/>
		</ExtractGITRevision>

		<ReplaceText
			InputFile="src\Common\CommonAssemblyInfo.cs.template"
			OutputFile="src\Common\CommonAssemblyInfo.cs.part"
			FindFor="\[REVISION\]"
			ReplaceBy="$(gitRevisionHash)" Condition="Exists('.git')"/>
		<ReplaceText
			InputFile="src\Common\CommonAssemblyInfo.cs.part"
			OutputFile="src\Common\CommonAssemblyInfo.cs"
			FindFor="\[VERSION\]"
			ReplaceBy="$(productVersion).$(gitRevision)" />
	</Target>

</Project>

src\Common\CommonAssemblyInfo.cs.template

using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

#if DEBUG
[assembly: AssemblyConfiguration("DEBUG")]
#else
[assembly: AssemblyConfiguration("RELEASE")]
#endif
[assembly: AssemblyCompany("BREEZE Software, Ltd")]
[assembly: AssemblyProduct("Product Name")]
[assembly: AssemblyCopyright("Copyright @ 2016 Breeze Software")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyVersion("[VERSION]")]
[assembly: AssemblyFileVersion("[VERSION]")]
[assembly: AssemblyInformationalVersion("[REVISION]")]